Yes, clearly it's his system having a little malfunction or two, and absolutely no other reason whatsoever. Like an alien masquerading as a human, for instance. Because that will be silly.

"I'm a journalist with the Daily Planet, investigating those accidents. This is the first time I've heard of questions. Do you have a warrant?"

Clark's tone of voice suggests he's read a few things about the legal system. Or watched a few Law & Order marathons. (Or both).